Results 11 to 20 of about 30,981 (277)
Weak Gravitational Lensing by Voids [PDF]
Monthly Notices of the Royal Astronomical Society, 1998 We consider the prospects for detecting weak gravitational lensing by underdensities (voids) in the large-scale matter distribution. We derive the basic expressions for magnification and distortion by spherical voids. Clustering of the background sources
Amendola, Luca +2 more
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Weak Gravitational Lensing by Dark Clusters [PDF]
Monthly Notices of the Royal Astronomical Society, 2002 We calculate the abundance of dark-matter concentrations that are sufficiently overdense to produce a detectable weak-gravitational-lensing signal. Most of these overdensities are virialized halos containing identifiable X-ray and/or optical clusters ...
Kamionkowski, Marc, Weinberg, Nevin N.
core +7 more sources
Probing satellite haloes with weak gravitational lensing [PDF]
Monthly Notices of the Royal Astronomical Society, 2012 We demonstrate the possibility of detecting tidal stripping of dark matter subhalos within galaxy groups using weak gravitational lensing. We have run ray-tracing simulations on galaxy catalogues from the Millennium Simulation to generate mock shape catalogues. The ray-tracing catalogues assume a halo model for galaxies and groups, using various models
B. Gillis +3 more
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Weak Gravitational Lensing [PDF]
, 2006 180 pages, 57 figures, to appear in: Kochanek, C.S., Schneider, P., Wambsganss, J.: Gravitational Lensing: Strong, Weak & Micro. Lecture Notes of the 33rd Saas-Fee Advanced Course, G. Meylan, P. Jetzer & P.
Petra Schneider
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INTRINSIC GALAXY ALIGNMENTS AND WEAK GRAVITATIONAL LENSING [PDF]
The Shapes of Galaxies and Their Dark Halos, 2002 8 pages.
Alan Heavens
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Intrinsic and extrinsic correlations of galaxy shapes and sizes in weak lensing data [PDF]
, 2021 The subject of this paper is to build a physical model describing shape and size correlations of galaxies due to weak gravitational lensing and due to direct tidal interaction of elliptical galaxies with gravitational fields sourced by the cosmic large ...
Durrer, Ruth +2 more
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Scholarpedia, 2017 Invited and refereed contribution to ...
Matthias Bartelmann, Matteo Maturi
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Nulling tomography with weak gravitational lensing [PDF]
Physical Review D, 2005 We explore several strategies of eliminating (or nulling) the small-scale information in weak lensing convergence power spectrum measurements in order to protect against undesirable effects, for example the effects of baryonic cooling and pressure forces on the distribution of large-scale structures. We selectively throw out the small-scale information
Huterer, Dragan, White, Martin
openaire +2 more sources
Dark Matter as Gravitational Solitons in the Weak Field Limit
Universe, 2020 In this paper, we will describe the idea that dark matter partly consists of gravitational solitons (gravisolitons). The corresponding solution is valid for weak gravitational fields (weak field limit) with respect to a background metric.
Torsten Asselmeyer-Maluga, Jerzy Król
doaj +1 more source
The Ray Bundle method for calculating weak magnification by gravitational lenses [PDF]
, 1998 We present here an alternative method for calculating magnifications in gravitational lensing calculations -- the Ray Bundle method. We provide a detailed comparison between the distribution of magnifications obtained compared with analytic results and ...
C. J. Fluke +24 more
core +3 more sources